perry



(No Model.) 2 Sheets-Sheet 1,

A. E. PERRY. BUFFING PAD ADJUSTER.

No. 541,675. Patentd June 25, 1895.

INVENT DR I afw z wmw 2 Sheets-Sheet 2, A. E. PERRY.

BUPFING PAD ADJUSTER.

Patented June 25, 1895.

(No Model.)

UNITED STATES PATENT OFFI E.

AUSTIN E. PERRY, OF WAKEFIELD, MASSACHUSETTS, ASSIGNOR, BY MESNEASSIGNMENTS, TO SIDNEY W. WINSLOW, TRUSTEE OF THE NAUMKEAG BUFFINGMACHINE ASSOCIATION.

BUFFlNG-PAD ADJUSTER.

SPECIFICATION forming part of Letters Patent No. 541,675, dated June 25,1895.

Application filed October 8, 1894.

To all whom it may concern:

Be it known that I, AUSTIN E. PERRY, of Wakefield, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Bufiting-Pad Adjusters, of which the followingis'a specification.

This invention relates to means for applying a flanged or tonguedbuffing pad of circuro lar form to a circular holder.

The holder referred to has a shank affixed to a rotary spindle and apad-supporting face arranged at right angles to the shank and spindleand formed to support a disk-shaped r5 pad coated with abrasivematerial, the holder having upon its back a seat adapted to support aseries of tongues formed on the marginal portion of the pad and bentover the margin of the holder and inwardly toward the shank or axis ofrotation. The holder also has a presser which is adjustable and isadapted to press the inwardly-turned tongues against the seat on theholder. The pad referred to is or may be of the con- 2 5 struction shownin Letters Patent to Harold A. Webster, No. 505,644, dated September 26,1893, it being composed of a disk of suitable flexible material havingan abrasive coating, such as the ordinary emery cloth of commerce, 0having its maginalpo'rtion slotted to form a series of radial tonguesadapted to be bent over the margin of the circular holder above referredto, and to be pressed down against the seat on the back of said holder.As the 5 pad is rapidly worn out in the use to which it is put inbuffing or cleaning bottoms of boot and shoe soles, itis necessary tofrequently remove a worn pad and replace it with a new one; and it isthe object of the invention to provide means whereby a pad may bequickly and accurately applied to the holder in position to be securedby the presser thereof.

The invention consists in a pad adjuster comprising a holder or basehaving a seat for 5 the face of the pad, and a contractible tonguebender adapted to simultaneously turn the tongues of the pad from asubstantially Vertical position inwardly over the pad-tongue seat of thesame.

a plan view of a'modification; Fig. 6 repre- Serial No. 526.196. (Nomad)i and to hold them on said seat while the presser is being adjusted toclamp them to the seat.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a top view of a pad adjuster embodying my invention.Fig. 2 represents a bottom view line 3 3 of Fig. 1. Fig.4 represents asimilar section showing the adjuster appliedto a pad holder andadju'sted'to bend the tongues over upon the pad-tongue seat. Fig. 5represents sents a perspective view of one'of the pads. The same lettersand numerals of reference indicate the same parts in all the figures.

Referring to Figs. 1, 2, 3, and 4, a represents a base or holder whichis preferably of circular form and'comp'rises a flat seat or surface 2to support the face of a pad I), said pad being of circular form andprovided at its margin with a series of tongues '17, as shown in saidWebster patent. In manufacturing said pad, it is molded so that thetongues stand substantiallyat right angles with the body or face of thepad, as shown in Fig. 6, so that when the face of the pad rests upon theseat* 2, the tongues stand out from said seat practically at rightangles therewith. The holder or also comprises a tongue bender which isconstructed to surround a series of tongues stand- .ing out from theseat 2, and is adapted to simultaneously bend said tonguesv inwardly Soand lay them down upon the seat of the pad holder. I prefer to make saidtongue bender of a series of radially movable plates cl which aremovable in slots or guides formed in an annular fiange'or wall a forminga part of the holder and surrounding the seat 2. Each plate at isprovided with a downwardly projecting stud d, said studs projectingthrough radial slots in the holder at and entering camshaped slots e ina ring or plate 8 which is partially rotatable upon the holder at andbears against the under side thereof, said plate e having a handle ewhereby it may be partially rotated first in .onedirection and then inthe other. 5

It will be seen that a movement of the plate Fig. 3 represents a sectionon 55 e in one direction will cause the cam-shaped slots e acting on thestuds d to move the plates d radially inward; and as said plates areformed to bear upon the outersides of the pad tongues,it follows thatthe inward move ment of the plates will bend the tongues simultaneouslyinward, and cause them to lie flat on the tongue seat of the pad holder.A movementof the plate 6 in the opposite direction will retract theplates d.

The preferred mode of operation of the deviceisasfollows:Theplatesdbeingretracted, the pad is placed on the seat 2 with itstongues standing out therefrom, and then the operator holding the devicein one hand by means of a handle a applies it to the pad holder, whichis supposed to be in its position on an organized machine provided witha power-driven shaft to which the shank of the holder is affixed. Theoperator then with the other hand moves the plate e in the direction required to move the plates (Z inwardly, and thus bend the tongues overthe pad seat. \Vhile the tongues are held in this position, the presseror clamp on the holder is brought down to secure the tongues to theseat, after which the plates d are retracted and the deviceremoved,leaving the pad in place on the holder. The under sides of theplates (1 are preferably beveled at their inner edges, as shown in Figs.3 and 4.

I do not limit myself to the described construction, particularly of thetongue bender. In Fig. 5 I show a modification in which the tonguebender, instead of being composed of a series of radially movableplates, is composed of a contractible wire clamp g, here shown ascomposed of a continuous piece of wire bent to form a loop orpractically continuous ring formed to surround the series of padtongues, the end portions of the wire being crossed and bent outwardlyto form han- ,dles g g. The central portion of the wire is engaged withan ear or socket g formed on a plate 9 which has a pin 9 entering a slot9 in the flange a of the holder, the socket-g being thus adapted toslide toward and from the center of the holder, as far as the length ofthe slot g will permit. In operating this modification, the pad isplaced in the holder as before, the wire g embracing the series oftongues, and then the operator grasping the handles g g draws the socketg and the part of the wire engaged therewith toward the center of theholder, and by moving thehandles \away from each other contracts thewire and tli causes it to press the tongues inwardly and bend them overupon the tongue seat simultaneously, or practically so, the wire beingheld in this position while the tongues are being secured.

It is obvious that other modifications may be employed without departingfrom the spirit of my invention. I believe myself to be the first tomake a pad-adjusting device comprising a seat for the face of the pad, atongue bender surrounding the seat and raised above the same andprovided with means for contracting and expanding it so that it may becaused to bend the tongues over the seat on the pad holder and thenextended to permit the separation of the pad holder and pad from theadjusting device. I therefore do not limit myself to the particulardevices here shown whereby the result above described is attained.

The described device may be used to fold over a continuous flange formedon the margin of abuffing-pad,or in other wordsafiange that is notdivided into sections or tongues. Such a flange might be formed, forexample, by subjecting the disk from which the pad is made to the actionof dies formed to bend up the marginal portion of the disk and thus forma flange which stands up from the body of the pad. This flange can befolded over by the devices above described, and held by said deviceswhileit is being secured by the presser.

I claim 1. A butting-pad adjuster comprising a base or holder and abender on said base adapted to bend a flange or a series of tonguesinwardly, as set forth.

2. A buffing-pad adjuster comprising a base or holder, a bender composedof a series of plates movable radially in a plane upon said base, andmeans for simultaneously moving said plates inwardly, as set forth.

3. A buffing-pad adjuster comprising a base or holder having a seat forthe face of the pad and a flange surrounding said seat, a series ofplates movable in guides in said flange and provided with studs, and anoperating plate movable on the holder and provided with camshaped slotsengaged with said studs, as set forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 2d day of October, A. D.1894.

AUSTIN E. PERRY.

Witnesses:

C. F. BROWN, A. D. HARRISON.

